About 2,170,000 results
Open links in new tab
  1. javascript - When should I use ?? (nullish coalescing) vs || (logical ...

    Related to Is there a "null coalescing" operator in JavaScript? - JavaScript now has a ?? operator which I see in use more frequently. Previously most JavaScript code used ||. let userAge =

  2. What does the !! (double exclamation mark) operator do in …

    Novice JavaScript developers need to know that the "not not" operator is using implicitly the original loose comparison method instead of the exact === or !== operators and also the …

  3. Which equals operator (== vs ===) should be used in JavaScript ...

    Dec 11, 2008 · I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing …

  4. What does ${} (dollar sign and curly braces) mean in a string in ...

    Mar 7, 2016 · What does $ {} (dollar sign and curly braces) mean in a string in JavaScript? Asked 9 years, 9 months ago Modified 1 year, 11 months ago Viewed 425k times

  5. How do you use the ? : (conditional) operator in JavaScript?

    Jun 7, 2011 · 27 It's a little hard to google when all you have are symbols ;) The terms to use are "JavaScript conditional operator". If you see any more funny symbols in JavaScript, you should …

  6. What is the purpose of the dollar sign in JavaScript?

    Mar 29, 2022 · Javascript does have types; and in any case, how is the dollar sign even related to that? It's just a character that happens to be a legal identifier in Javascript.

  7. Difference between == and === in JavaScript - Stack Overflow

    Feb 7, 2009 · What is the difference between == and === in JavaScript? I have also seen != and !== operators. Are there more such operators?

  8. How does the double exclamation (!!) work in JavaScript?

    Mar 28, 2015 · How does the double exclamation (!!) work in JavaScript? [duplicate] Asked 10 years, 8 months ago Modified 1 year, 9 months ago Viewed 254k times

  9. Why would a JavaScript variable start with a dollar sign?

    A valid JavaScript identifier shuold must start with a letter, underscore (_), or dollar sign ($); subsequent characters can also be digits (0-9). Because JavaScript is case sensitive, letters …

  10. How to use OR condition in a JavaScript IF statement?

    Mar 2, 2010 · How to use OR condition in a JavaScript IF statement? Asked 15 years, 9 months ago Modified 2 years, 10 months ago Viewed 879k times

    • Site icon
      coursera.org
      https://www.coursera.org
      About our ads

      JavaScript Course - Learn Javascript

      SponsoredLaunch your career as a front-end developer. No degree or prior experience required. Build job-ready skills for an in-demand career and earn a credential from Meta.

      Read Blog · Get Ready for a Career · Find A Course · Stand Out To Employers

    • Site icon
      alison.com
      https://alison.com › free-learning › diploma-courses
      About our ads

      Free Online Javascript Courses | All Courses Online & Free

      SponsoredFree Online Javascript Courses From Beginner To Advanced - With Certificates. Thousands Of Free Certificate Courses. Study Online Anytime, Anywhere & At Your Own Pace.
      Site visitors: Over 100K in the past month

      Boost Your Resume · 1000s Of Free Courses · Get Certified & Get Hired · Free Career Guides

      4.5/5 (22K reviews)

    • Site icon
      udemy.com
      https://www.udemy.com
      About our ads

      JavaScript Online Course - Learn Javascript

      SponsoredLearn JavaScript online at your own pace. Start today and improve your skills. Join millions of learners from around the world already learning on Udemy.
      Site visitors: Over 1M in the past month